Pilot bushing for AMC 232

Discussion in 'General IH Tech' started by Evan McGinnis, Jun 30, 2020.


  1. Evan McGinnis

    Evan McGinnis Farmall Cub

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    1971 800B w/ AMC 232 & 4 Speed transmission
    I'm having a bit of a hard time tracking down something I thought would be easy.
    I am rebuilding my engine, but I'm not quite sure what pilot bearing and alignment tool I should get.
    The old bearing I pulled out is ID 19/32" OD 1 3/64" x 5/8" tall
    The nose of the input shaft is 9/16.
    A parts supplier tells me he has an alignment tool for a 5/8 bushing, but that won't fit.

    Do I just have some sort of odd setup, or am I just not measuring correctly?

    Thanks,
    -Evan-
     
  2. Evan McGinnis

    Evan McGinnis Farmall Cub

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    When I remove the transmission tunnel, I see T98-148H in the cover, which I think indicates a T18? The input shaft is 10 spline, 1 1/4".

    -Evan-
     
  3. Dana Strong

    Dana Strong Lives in an IH Dealership

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    My MT-123 parts book lists 387 078 C1 as the bushing, 421 231 C1 as a wick for it, (no other parts, e.g. bearing, being shown) both for the 6-232 engine and manual transmission. The bushing shows up on this site (which, IIRC, also came up recently on another thread:

    I would probably first contact my favorite LightLine dealer or a local Bearing house, asking the latter if they have a cross reference table.
    As for the pilot tool, a piece of plastic or even wood whittled to closely fit the holes would work fine. Doesn't need to be splined or even one piece, just closely fitting. A plastic tube over a smaller shaft might work. Or a tape wrapping to get the final size right?
     
    jeff campbell likes this.
  4. RinTX

    RinTX High Wheeler

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    Also look on the side of that transmission. I recently learned that what I thought was a T18 in my Travelall is most likely a T98.
    E9F78CCD-189A-48F6-BB73-FACBA8D4AFE9.jpeg
    You can use a socket extension for an alignment tool too.
     
  5. WRENCH MAN

    WRENCH MAN Dreams of Cub Cadets

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    The AMC engines used AMC pilot bushings, get one for the same year model AMC/Jeep, the issue is the IH put a sleeve on the pilot of their transmissions to be compatible with the AMC engines, if you're measuring your pilot at 9/16"(it's actually 15mm, the bearing IS metric, the # is 6202 for the IH engines) the pilot sleeve is missing.

    There is MUCH info on this subject with a little bit of a search.
    http://www.binderplanet.com/forums/index.php?search/19977243/&q=pilot&o=date&c[user][0]=9176
     
  6. jeff campbell

    jeff campbell Lives in an IH Dealership

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    Extension with correct size socket on it.
     

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